Merge branch 'master' into dont-deserialize-twice

MANIFEST.in

-recursive-include rest_framework/static *.js *.css *.png
+recursive-include rest_framework/static *.js *.css *.png *.eot *.svg *.ttf *.woff
 recursive-include rest_framework/templates *.html
 recursive-exclude * __pycache__
 recursive-exclude * *.py[co]

rest_framework/serializers.py

@@ -230,7 +230,11 @@ class Serializer(BaseSerializer):
 
     def get_initial(self):
         if self._initial_data is not None:
-            return self.to_representation(self._initial_data)
+            return ReturnDict([
+                (field_name, field.get_value(self._initial_data))
+                for field_name, field in self.fields.items()
+                if field.get_value(self._initial_data) is not empty
+            ], serializer=self)
 
         return ReturnDict([
             (field.field_name, field.get_initial())